2 sentences

1. 马拉松的起点在天安门广场。

   mǎ​lā​sōng de qǐ​diǎn zài Tiān'ān​mén guǎng​chǎng.

   The starting point of the marathon is at Tiananmen Square.

   Source: Dong Chinese Dictionary

2. 每到国庆，天安门广场都会举行盛大的升旗仪式。

   měi dào Guó​qìng, Tiān'ān​mén guǎng​chǎng dōu huì jǔ​xíng shèng​dà de shēng​qí yí​shì.

   Every National Day, a grand flag-raising ceremony is held at Tiananmen Square.

   Source: Dong Chinese Dictionary