Buildings that we often encounter on the cliffs are castles, fortresses, lighthouses, monasteries. These buildings were built in inaccessible places for protection from enemies, for a good view of the water surface, beautiful views of the environment or other reasons. Exactly, these beautiful views, natural environment and often amazing architecture of buildings, attract many tourists in these areas.
# Guaita Fortress, San MarinoGuaita fortress, located on Guaita peak and overlooking the city of San Marino, is an iconic image of this micro country embraced by Italy. The fortress was constructed in the 11th century and served as a prison for some time. Guaita is one of the Three Towers of San Marino, located on the three peaks of Monte Titano. The towers are depicted on the San Marino's national flag and its coat of arms.
# Church of Katskhi Pillar, GeorgiaThis is Katskhi Pillar. It abruptly rises 40 meters (130 ft) from the hills of Central Georgia and looks similar to a giant’s club. In the 4th century, Georgia adapted Christianity as its state religion, and Katskhi Pillar became the site of a small church first built in the 7th century. One Georgian monk has been living in it for nearly 20 years now. It is also interesting that women are not allowed to climb to the top.
# Bled Castle, SloveniaBled castle is a medieval castle built on a precipice above the city of Bled in Slovenia, overlooking Lake Bled. According to written sources, it is the oldest Slovenian castle and is currently one of the most visited tourist attractions in Slovenia. This castle is situated on top of a steep cliff that rises 130 meters (425 ft) above the glacial Lake Bled and it is a symbol of Bled and Slovenia.
# Monastery of the Holy Trinity, GreeceThe Holy Trinity Monastery is an Orthodox monastery in central Greece. The monastery is one of six functioning monasteries in Meteora. It is the oldest among those present at Meteora, having been built in 1476. This monastery sits on a tall rock 400 m (1,300 ft) in height. In the old days, access to this monastery was via a net and rope ladder. Today, entrance to the monastery is gained by climbing 140 steps cut into the pinnacle rock. It was richly decorated and had precious manuscripts; however, these treasures were looted during World War II.
# Swallow's Nest, UkraineThe Swallow's Nest is a decorative castle near Yalta on the Crimean peninsula in southern Ukraine. It was built between 1911 and 1912 in Gaspra, on top of 40-metre (130 ft) high Aurora Cliff, to a Neo-Gothic design by the Russian architect Leonid Sherwood. The castle overlooks the Cape of Ai-Todor of the Black Sea and is located near the remnants of the Roman castrum of Charax. Swallow's Nest is one of the most popular visitor attractions in Crimea, becoming the symbol of Crimea's southern coastline.
# O'Brien's Tower, IrelandO'Brien's Tower marks the highest point of the Cliffs of Moher in Ireland. The tower was built on the cliffs in 1835 by local landlord Sir Cornellius O'Brien as an observation tower for the hundreds of Victorian tourists that frequented the cliffs at the time. The Cliffs of Moher rise 120 metres (390 ft) above the Atlantic Ocean at Hag's Head, and reach their maximum height of 214 metres (702 ft) just north of O'Brien's Tower. The cliffs receive almost one million visitors a year.