The East Gate of Southeast University (Sipailou Campus) stands in downtown Nanjing as one of the most historic entrances to this century-old institution. The campus architecture blends East-meets-West styles, notably exemplified by Republic-era landmarks like the Grand Auditorium and Old Library, showcasing early 20th-century aesthetic. Strolling beneath towering phoenix trees amid red-brick buildings, visitors immerse in profound academic heritage and timeless nostalgia. More than an educational hub, it embodies Nanjing's urban legacy, drawing travelers to witness the interplay of culture and history.