The Holy Trinity Cathedral of Tbilisi, also known as Sameba, is a prominent religious landmark located in the capital city of Georgia. The cathedral is considered as the main cathedral of the Georgian Orthodox Church and is the third-tallest Eastern Orthodox cathedral in the world, standing at 101 meters (331 feet).

The construction of the Holy Trinity Cathedral began in 1995 and was completed in 2004. The architectural design of the cathedral is a blend of traditional Georgian style and modern techniques. The exterior of the cathedral features a blend of ornate stonework and copper domes, while the interior is decorated with frescoes and mosaics depicting scenes from the Bible and Georgian history.

The cathedral complex also includes a bell tower, several chapels, and a monastery. The bell tower stands at 73 meters (240 feet) and offers panoramic views of the city of Tbilisi. The monastery is home to several resident monks who maintain the cathedral and offer religious services to visitors.

The Holy Trinity Cathedral is a popular destination for locals and tourists alike. It is located in a scenic area of the city, with views of the nearby hills and the river Mtkvari. Visitors can attend religious services, explore the cathedral's interior, and learn about the history and traditions of the Georgian Orthodox Church. The cathedral also hosts concerts and other cultural events throughout the year.