Kölner Dom (Cologne Cathedral), Cologne (must see)

Cologne Cathedral is a World Heritage Site and Germany's most visited landmark. Twenty thousand people visit each day. Cologne Cathedral is 157 meters (515) tall and the world's tallest twin-spired church. It is Europe's second-tallest church and the world's third tallest church. In addition, it is Northern Europe's largest Gothic church.

Construction began in 1248 and stalled between 1560 and 1840. Finally, the tower was completed in 1880.

The site has hosted Christian buildings since the fourth century. A seventh-century baptistery was located at the Cathedral's east end. The "Old Cathedral" stood here from 818 to 1248.

Cologne Cathedral was originally built to house the relics of the Three Kings. The eastern arm of the cathedral was built first. Construction on the west front continued in the 14th century. When construction stalled in 1473, a massive crane stayed in place for 400 years.

In the 19th century, the original facade plans were discovered, and officials decided to complete the cathedral. In 1860, the cathedral was completed 632 years after construction began. World War II bombs damaged the church, and repairs were carried out.

The black marble High Altar was installed in 1322. The Shrine of the Three Kings is the cathedral's biggest draw. The shrine holds the remains of the Three Wise Men. Work on the gilded shrine began in 1190.

The Gero Crucifix was created in the 10th century and is one of the oldest examples of a large free-standing crucifix. The wooden Milan Madonna dates to around 1290. An interior wall features a pair of stone tablets from the 13th century, which legalized Cologne's Jewish residents. The choir has original carved stalls that date to the 14th century.

The cathedral features 11 bells. The oldest bell was cast in 1418. When Saint Peter's Bell was cast in 1922, it was the world's largest free-swinging bell.

Why You Should Visit:
Simply jaw dropping in size. You may never see another church so detailed and so large.

Tip:
Take a look at the beautiful mosaics on the floor in the Cathedral's rear part. You may also climb up to the top for a great view of Cologne, or go to underground parking to see the original foundations exposed there.